Low-Level Laser in Treatment of Head and Neck Lymphedema: A Pilot Study

Inclusion Criteria: * \>18 years of age * Completion of either postoperative radiation or chemoradiation therapy * No evidence of cancer * Having head and neck external lymphedema * Either completion of lymphedema therapy or not in active lymphedema therapy * Ability to speak and read English * Able to provide informed consent Exclusion Criteria: Patients will be excluded if they have any of the following medical conditions that would prohibit the safe implementation of LLLT: pregnancy; photosensitivity; chronic inflammatory diseases; venous thrombosis; history of severe trauma; medication that affects body fluid and electrolyte balance; use of high doses of non-steroidal anti-inflammatory drugs; or pre-existing skin rash, ulceration, open wound in the treatment area; and allergic and other systemic skin diseases.